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Título

Current–voltage characteristic behaviour of dense Zn2SnO4-ZnO ceramics

AutorIglesias Vega, Yolanda; Peiteado, Marco; Frutos, José de; Caballero Cuesta, Amador
Palabras claveZnO
Zn2SnO4
Electrical conductivity
Fecha de publicación2007
EditorElsevier
CitaciónJournal of the European Ceramic Society 27 (2007) 3931–3933
ResumenThe present work deals with the electrical characterization of undoped Zn2SnO4 (ZTO) and SnO2-doped ZnO bulk ceramics in order to clarify the role played by the ZTO spinel type phase in the electrical response of these materials. For this purpose, SnO2-doped ZnO materials with SnO2 concentrations of 0.1, 1 and 10 mol% have been prepared by co-precipitation and undoped ZTO powders have been prepared by a classical mixing oxide procedure. ZTO materials with 90–92% of the theoretical density have been obtained and non-linear behaviour is observed for ZTO- and SnO2-doped ZnO materials. For SnO2-doped ZnO the appearance of non-linear I–V behaviour is mainly dominated by the formation of the ZTO phase and the interfaces associated to its presence. ZTO shows a NTC behaviour that is in disagreement with the PTC behaviour previously reported in the literature.
Versión del editorhttp://dx.doi.org/10.1016/j.jeurceramsoc.2007.02.065
URIhttp://hdl.handle.net/10261/17616
DOI10.1016/j.jeurceramsoc.2007.02.065
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